Compare 2012 BMW 6-Series vs 2012 Mercedes-Benz SL Class

2012 BMW 6-Series
2012 Mercedes-Benz SL Class
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2-Door Coupe 640i
Style MPG City MPG Hwy Invoice MSRP
2-Door Coupe 640i 23 33 $67,710 $73,600
2-Door Convertible 640i 21 31 $74,610 $81,100
2-Door Coupe 650i 15 23 $76,360 $83,000
2-Door Coupe 650i xDrive 15 20 $79,120 $86,000
2-Door Convertible 650i 15 23 $83,260 $90,500
2-Door Convertible 650i xDrive 15 23 $86,020 $93,500
Select style
2-Door Roadster SL550
Style MPG City MPG Hwy Invoice MSRP
2-Door Roadster SL550 14 22 $96,395 $103,650
2-Door Roadster SL63 AMG 12 19 $130,609 $140,440
Pricing
Invoice Price
$67,710
$96,395
Manufacturer Suggested Retail Price
$73,600
$103,650
Monthly Payment Estimate
$1227 / month
$1728 / month
The Car Connection's Take
TCC Rating
8.6
8.4
TCC’s Bottom Line
Elegant, stylish, comfortable, and quick, the 2012 BMW 6-Series is one of the top choices for a grand-touring coupe or convertible--as long as your budget can handle it. A powerful near-exotic luxury convertible, or a grand tourer with German precision? The 2012 Mercedes-Benz SL Class is both.
TCC Likes
TCC Dislikes
Fuel Economy
City
23 mpg 14 mpg
Highway
33 mpg 22 mpg
Vehicle
EPA Classification
Compact Cars 2 Seater
Interior Dimensions
Front Shoulder Room (in)
56.9 54.0
Passenger Volume (ft³)
87.0 50.0
Second Head Room (in)
35.7 -
Second Shoulder Room (in)
49.7 -
Front Leg Room (in)
42.1 42.9
Passenger Capacity
4 2
Front Hip Room (in)
- TBD - 56.9
Second Leg Room (in)
30.5 -
Front Head Room (in)
40.0 37.7
Second Hip Room (in)
- TBD - -
Exterior Dimensions
Min Ground Clearance (in)
- TBD - - TBD -
Length, Overall (in)
192.8 180.4
Height, Overall (in)
53.9 51.1
Track Width, Rear (in)
65.0 60.5
Wheelbase (in)
112.4 100.8
Liftover Height (in)
- TBD - - TBD -
Width, Max w/o mirrors (in)
74.6 71.7
Track Width, Front (in)
62.8 61.4
Cargo Area Dimensions
Trunk Volume (ft³)
16.2 10.2 (7.2 w/top down)
Brakes
Drum - Rear (Yes or )
NA NA
Brake ABS System
4-Wheel 4-Wheel
Disc - Rear (Yes or )
Yes Yes
Rear Brake Rotor Diam x Thickness (in)
13.6 x 0.9 11.8 x 0.4
Brake Type
Pwr Pwr
Rear Drum Diam x Width (in)
NA NA
Disc - Front (Yes or )
Yes Yes
Front Brake Rotor Diam x Thickness (in)
13.7 x 1.2 13.0 x 1.1
Fuel Tank
Fuel Tank Capacity, Approx (gal)
18.5 21.1
Steering
Steering Ratio (:1), Overall
17.2 16.3
Turning Diameter - Curb to Curb (ft)
38.4 36.2
Steering Type
Pwr Rack & Pinion Pwr Rack & Pinion
Lock to Lock Turns (Steering)
- TBD - 2.6
Turning Diameter - Wall to Wall (ft)
- TBD - N/A
Tires
Front Tire Size
P245/45R18 P255/40R18
Spare Tire Size
NA NA
Front Tire Order Code
NA NA
Spare Tire Order Code
NA NA
Rear Tire Size
P245/45R18 P285/35R18
Rear Tire Order Code
NA NA
Trailering
Dead Weight Hitch - Max Tongue Wt. (lbs)
NA NA
Wt Distributing Hitch - Max Tongue Wt. (lbs)
NA NA
Dead Weight Hitch - Max Trailer Wt. (lbs)
NA NA
Wt Distributing Hitch - Max Trailer Wt. (lbs)
NA NA
Weight Information
Base Curb Weight (lbs)
4001 4220
Wheels
Spare Wheel Size (in)
NA NA
Rear Wheel Material
Aluminum Aluminum
Rear Wheel Size (in)
18 x 8 18 x 9.5
Front Wheel Material
Aluminum Aluminum
Spare Wheel Material
NA NA
Front Wheel Size (in)
18 x 8 18 x 8.5
Cooling System
Total Cooling System Capacity (qts)
10.8 - TBD -
Electrical
Cold Cranking Amps @ 0° F (Primary)
- TBD - 760
Maximum Alternator Capacity (amps)
210 180
Engine
Displacement
3.0L/182 5.5L/333
SAE Net Horsepower @ RPM
315 @ 5800-6000 382 @ 6000
Engine Type
Turbocharged Gas I6 Gas V8
Fuel System
Direct Injection Electronic Fuel Injection
SAE Net Torque @ RPM
332 @ 1400-4500 391 @ 2800-4000
Engine Order Code
NA NA
Mileage
EPA Fuel Economy Est - Hwy (MPG)
33 22
EPA Fuel Economy Est - City (MPG)
23 14
Fuel Economy Est-Combined (MPG)
26 17
Transmission
Clutch Size (in)
NA NA
Third Gear Ratio (:1)
2.11 1.92
Trans Type
8 7
Drivetrain
Rear Wheel Drive Rear Wheel Drive
Fifth Gear Ratio (:1)
1.29 1.00
Trans Description Cont. Again
NA NA
Reverse Ratio (:1)
3.30 3.42 (R2 2.23)
Eighth Gear Ratio (:1)
0.67 -
Second Gear Ratio (:1)
3.14 2.86
Trans Order Code
2TB NA
Final Drive Axle Ratio (:1)
3.23 2.65
Fourth Gear Ratio (:1)
1.67 1.37
Trans Description Cont.
Automatic w/Manual Shift Automatic
Sixth Gear Ratio (:1)
1.00 0.82
Seventh Gear Ratio (:1)
0.84 0.73
First Gear Ratio (:1)
4.71 4.38
Summary
Vehicle Name
BMW 6 Series Mercedes-Benz SL-Class
Body Style
Coupe Convertible
Suspension
Shock Absorber Diameter - Front (mm)
NA N/A
Stabilizer Bar Diameter - Front (in)
- TBD - - TBD -
Suspension Type - Rear
Multi-link Multi-Link
Suspension Type - Rear (Cont.)
NA NA
Shock Absorber Diameter - Rear (mm)
NA N/A
Suspension Type - Front
Double Wishbone Independent
Stabilizer Bar Diameter - Rear (in)
- TBD - - TBD -
Suspension Type - Front (Cont.)
NA NA
Emissions
EPA Greenhouse Gas Score
6 2
Tons/yr of CO2 Emissions @ 15K mi/year
7.1 11.0

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